Flink architecture job manager is master task managers are workers task slot is a unit of resource in cluster, number of slot is equal to number of cores(超线程则slot2*cores), slot一组内存一些线程共享CPU when starting a cluster,job manager will allocate a …
一、QPS,每秒查询
QPS:Queries Per Second意思是“每秒查询率”,是一台服务器每秒能够相应的查询次数,是对一个特定的查询服务器在规定时间内所处理流量多少的衡量标准。互联网中,作为域名系统服务器的机器的性能经常…